NON-KERATOCONUS ECTASIA

Riboflavin/UVA cross-linking has been successfully used in the treatment of non-keratoconus ectasia, such as pellucid marginal degeneration [1,2] or keratectasia following LASIK [3,4] and radial keratotomy [5]. An arrest or even a partial reversal in the ectasia has been seen in almost all cases after cross-linking. There has in fact been only one reported case of an exacerbation of keratectasia despite cross-linking and in this case hormonal changes during pregnancy were believed to be the cause.